Cargo Features

ra_ap_profile has no features set by default.

[dependencies]
ra_ap_profile = { version = "0.0.248", features = ["cpu_profiler", "jemalloc"] }
cpu_profiler
jemalloc = jemalloc-ctl

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

jemalloc-ctl jemalloc?

Enables tikv-jemalloc-ctl ^0.5.0